(HealthDay News) -- Ketoacidosis occurs when diabetic people develop dangerously high levels of ketones, which are produced when stored fat is burned for energy.

Ketoacidosis, a sign that diabetes is uncontrolled, requires immediate medical attention.

The American Diabetes Association describes these common warning signs of ketoacidosis:

• Feeling very thirsty or having a very dry mouth.
• Urinating frequently.
• High blood sugar (glucose).
• High ketone levels in the urine.
• Persistent fatigue.
• Being confused or having difficulty paying attention.
• Flushed or dry skin.
• Feeling nauseous, vomiting, or having pain in the abdomen.
• Difficulty breathing, and having breath that emits a fruity smell.